2M229 Series
ABSOLUTE MAXIMUM RATING
Filament voltage (Note 1)
Cathode preheating time
Peak anode voltage
Average anode current
Peak anode current
Anode input power
Load VSWR (Note 2)
Anode temperature (Note 3)
Antenna seal temperature (Note 4)
Capacitor temperature (Note 5)
Storage temperature
Minimum
2.85
0
-30
Maximum
3.75
4.5
350
1.2
1.4
4
300
320
120
60
V
s
kV
mAdc
A
kW
℃
℃
℃
℃
The maximum ratings in this table which are interrelated should not be exceeded
either individually or in combination under any worst case.
Even if the maximum ratings are not exceeded, reduced life can occur as the
operating conditions approach to the maximum ratings.
20
10
0.45 λ
0.40 λ
+5MHz
+10MHz
600W2
700W
1.5
800W
850W
-10MHz
d
rd Loa
owa
0MHz
5 -5MHz
4
500W 3
T
um
MHz
V
kV
mAdc
W
ℓ/min
Pa
0.05 λ
VS
W
m
ini
M
TYPICAL OPERATION
Power supply : Single phase full wave rectified without filter
Frequency
2460
Filament voltage
3.3
Peak anode voltage (Note 6)
4.0
Average anode current
300
Output power (matched load, Note 6)
850
Cooling air flow
800
80
Pressure drop (Approx.)
RIEKE DIAGRAM
Power supply : Single phase full wave rectified without filter
Filament voltage
: 3.3 V
Average anode current
: 300 mA (constant)
Peak anode voltage (Matched load)
: 4.0 kV
Oscillating frequency (matched load) : 2460 MHz
Reference Plane (Antenna)
0.10λ
-15MHz
0.35 λ
+15MHz
880W
0.15λ
Unmeasurable
Region
0.30 λ
0.20λ
0.25 λ
4
2M231 Series
ABSOLUTE MAXIMUM RATING
Filament voltage (Note 1)
Cathode preheating time
Peak anode voltage
Average anode current
Peak anode current
Anode input power
Load VSWR (Note 2)
Anode temperature (Note 3)
Antenna seal temperature (Note 4)
Capacitor temperature (Note 5)
Storage temperature
Minimum Maximum
4.0
3.0
0
4.2
250
1.0
1.0
4
300
320
120
60
-30
V
s
kV
mAdc
A
kW
℃
℃
℃
℃
The maximum ratings in this table which are interrelated should not be exceeded
either individually or in combination under any worst case.
Even if the maximum ratings are not exceeded, reduced life can occur as the
operating conditions approach to the maximum ratings.
0.45 λ
520W
0.10 λ
-5MHz
-10MHz
0.35 λ
-15MHz
0.15 λ
Unmeasurable
Region
0.30 λ
0.20 λ
0.25 λ
5
d L oa d
2450W
1.5 500W
ar
Tow
+15MHz
0.05 λ
5
+5MHz 4 350W
3 400W 0MHz
um
+10MHz
0.40λ
VS
W
im
MHz
V
kV
mAdc
W
?/min
Pa
20
10
in
M
TYPICAL OPERATION
Power supply : Single phase full wave rectified without filter
2460
Frequency
3.5
Filament voltage
3.7
Peak anode voltage (Note 6)
200
Average anode current
Output power (matched load, Note 6)
520
Cooling air flow
800
100
Pressure drop (Approx.)
RIEKE DIAGRAM
Power supply : Single phase full wave rectified without filter
Filament voltage
: 3.5 V
Average anode current
: 200 mA (constant)
Peak anode voltage (Matched load)
: 3.7 kV
Oscillating frequency (matched load) : 2460 MHz
Reference Plane (Antenna)
2M240 Series
ABSOLUTE MAXIMUM RATING
Filament voltage (Note 1)
Cathode preheating time
Peak anode voltage
Average anode current
Peak anode current
Anode input power
Load VSWR (Note 2)
Anode temperature (Note 3)
Antenna seal temperature (Note 4)
Capacitor temperature (Note 5)
Storage temperature
Minimum Maximum
2.85
3.75
0
4.5
350
1.2
1.4
4
300
320
120
60
-30
V
s
kV
mAdc
A
kW
℃
℃
℃
℃
The maximum ratings in this table which are interrelated should not be exceeded
either individually or in combination under any worst case.
Even if the maximum ratings are not exceeded, reduced life can occur as the
operating conditions approach to the maximum ratings.
20
10
0.45λ
0.10λ
d
+10MHz
-10MHz
r d Loa
+5MHz
owa
mT
0.40 λ
mu
0MHz
0.05λ
i ni
MHz
V
kV
mAdc
W
?/min
Pa
5-5MHz
4
3
500W
600W2
700W
1.5
800W
850W
VS
W
M
TYPICAL OPERATION
Power supply : Single phase full wave rectified without filter
Frequency
2460
Filament voltage
3.3
Peak anode voltage (Note 6)
4.0
Average anode current
300
Output power (matched load, Note 6)
850
Cooling air flow
800
Pressure drop (Approx.)
70
RIEKE DIAGRAM
Power supply : Single phase full wave rectified without filter
: 3.3 V
Filament voltage
: 300 mA (constant)
Average anode current
: 4.0 kV
Peak anode voltage (Matched load)
Oscillating frequency (matched load) : 2460 MHz
Reference Plane (Antenna)
-15MHz
0.35λ
+15MHz
880W
0.15λ
Unmeasurable
Region
0.30 λ
0.20λ
0.25 λ
6
2M248 Series
ABSOLUTE MAXIMUM RATING
Filament voltage (Note 1)
Cathode preheating time
Peak anode voltage
Average anode current
Peak anode current
Anode input power
Load VSWR (Note 2)
Anode temperature (Note 3)
Antenna seal temperature (Note 4)
Capacitor temperature (Note 5)
Storage temperature
Minimum
2.7
0
-30
Maximum
3.6
4.85
380
1.5
1.8
4
300
320
120
60
V
s
kV
mAdc
A
kW
℃
℃
℃
℃
The maximum ratings in this table which are interrelated should not be exceeded
either individually or in combination under any worst case.
Even if the maximum ratings are not exceeded, reduced life can occur as the
operating conditions approach to the maximum ratings.
1000W
+10MHz
-10MHz
Load
ard
+5MHz
0.05 λ
Tow
0.40 λ
700W 5
4
800W
3
900W
2
-5MHz
m
mu
MHz
V
kV
mAdc
W
ℓ/min
Pa
0MHz
VS
W
ini
0.45 λ
20
10
M
TYPICAL OPERATION
Power supply : Single phase full wave rectified without filter
2460
Frequency
3.15
Filament voltage
4.35
Peak anode voltage (Note 6)
330
Average anode current
Output power (matched load, Note 6)
1030
Cooling air flow
800
70
Pressure drop (Approx.)
RIEKE DIAGRAM
Power supply : Single phase full wave rectified without filter
Filament voltage
: 3.15 V
Average anode current
: 330 mA (constant)
Peak anode voltage (Matched load)
: 4.35 kV
Oscillating frequency (matched load) : 2460 MHz
Reference Plane (Antenna)
0.10 λ
1.5
1060W
-15MHz
+15MHz
0.35 λ
0.15 λ
Unmeasurable
Region
0.30 λ
0.20 λ
0.25 λ
7
2M253 Series
ABSOLUTE MAXIMUM RATING
Filament voltage (Note 1)
Cathode preheating time
Peak anode voltage
Average anode current
Peak anode current
Anode input power
Load VSWR (Note 2)
Anode temperature (Note 3)
Antenna seal temperature (Note 4)
Capacitor temperature (Note 5)
Storage temperature
Minimum
2.85
0
-30
Maximum
3.75
4.5
350
1.2
1.4
4
300
320
120
60
V
s
kV
mAdc
A
kW
℃
℃
℃
℃
The maximum ratings in this table which are interrelated should not be exceeded
either individually or in combination under any worst case.
Even if the maximum ratings are not exceeded, reduced life can occur as the
operating conditions approach to the maximum ratings.
+5MHz
+10MHz
+15MHz
-5MHz
1.5 800W
860W
880W
0.35 λ
Loa d
ard
0.40 λ
0.05 λ
Tow
MHz
V
kV
mAdc
W
ℓ/min
Pa
VS
W
m
mu
ini
0.45 λ
20
10
0MHz
5
4
3 600W
700W
2
M
TYPICAL OPERATION
Power supply : Single phase full wave rectified without filter
Frequency
2460
Filament voltage
3.3
Peak anode voltage (Note 6)
4.0
Average anode current
300
Output power (matched load, Note 6)
860
Cooling air flow
800
70
Pressure drop (Approx.)
RIEKE DIAGRAM
Power supply : Single phase full wave rectified without filter
Filament voltage
: 3.3 V
Average anode current
: 300 mA (constant)
Peak anode voltage (Matched load)
: 4.0 kV
Oscillating frequency (matched load) : 2460 MHz
Reference Plane (Antenna)
0.10 λ
-10MHz
-15MHz
0.15 λ
Unmeasurable
Region
0.30 λ
0.20 λ
0.25 λ
8
2M300 Series
ABSOLUTE MAXIMUM RATING
Filament voltage (Note 1)
Cathode preheating time
Peak anode voltage
Average anode current
Peak anode current
Anode input power
Load VSWR (Note 2)
Anode temperature (Note 3)
Antenna seal temperature (Note 4)
Capacitor temperature (Note 5)
Storage temperature
Minimum
3.0
0
-30
Maximum
4.0
4.2
250
1.0
1.0
4
300
320
120
60
V
s
kV
mAdc
A
kW
℃
℃
℃
℃
The maximum ratings in this table which are interrelated should not be exceeded
either individually or in combination under any worst case.
Even if the maximum ratings are not exceeded, reduced life can occur as the
operating conditions approach to the maximum ratings.
+5MHz
+10MHz
0.10 λ
-10MHz
575W
+15MHz
-15MHz
0.35 λ
0.15 λ
Unmeasurable
Region
0.30 λ
0.20 λ
0.25 λ
9
Load
0.40 λ
-5MHz
a rd
Tow
MHz
V
kV
mAdc
W
ℓ/min
Pa
VS
W
0.05 λ
m
mu
ini
0.45 λ
20
0MHz 10
350W 5
4
400W 3
450W
2
500W
1.5
555W
M
TYPICAL OPERATION
Power supply : Single phase full wave rectified without filter
2465
Frequency
3.5
Filament voltage
3.85
Peak anode voltage (Note 6)
200
Average anode current
Output power (matched load, Note 6)
550
Cooling air flow
800
100
Pressure drop (Approx.)
RIEKE DIAGRAM
Power supply : Single phase full wave rectified without filter
Filament voltage
: 3.5 V
Average anode current
: 200 mA (constant)
Peak anode voltage (Matched load)
: 3.85 kV
Oscillating frequency (matched load) : 2465 MHz
Reference Plane (Antenna)
2M301 Series
ABSOLUTE MAXIMUM RATING
Filament voltage (Note 1)
Cathode preheating time
Peak anode voltage
Average anode current
Peak anode current
Anode input power
Load VSWR (Note 2)
Anode temperature (Note 3)
Antenna seal temperature (Note 4)
Capacitor temperature (Note 5)
Storage temperature
Minimum
2.85
0
-30
Maximum
3.75
4.5
350
1.2
1.4
4
300
320
120
60
V
s
kV
mAdc
A
kW
℃
℃
℃
℃
The maximum ratings in this table which are interrelated should not be exceeded
either individually or in combination under any worst case.
Even if the maximum ratings are not exceeded, reduced life can occur as the
operating conditions approach to the maximum ratings.
0MHz
0.40 λ
+10MHz
0.35 λ
+15MHz
900W
-10MHz
Loa d
ard
+5MHz
5
600W 4
3
700W
2
800W
1.5
0.05 λ
Tow
MHz
V
kV
mAdc
W
ℓ/min
Pa
500W
VS
W
m
mu
ini
0.45 λ
20
10 -5MHz
M
TYPICAL OPERATION
Power supply : Single phase full wave rectified without filter
Frequency
2465
Filament voltage
3.3
Peak anode voltage (Note 6)
4.1
Average anode current
300
Output power (matched load, Note 6)
900
Cooling air flow
800
80
Pressure drop (Approx.)
RIEKE DIAGRAM
Power supply : Single phase full wave rectified without filter
Filament voltage
: 3.3 V
Average anode current
: 300 mA (constant)
Peak anode voltage (Matched load)
: 4.1 kV
Oscillating frequency (matched load) : 2465 MHz
Reference Plane (Antenna)
0.10 λ
-15MHz
920W
0.15 λ
Unmeasurable
Region
0.30 λ
0.20 λ
0.25 λ
10
2M302 Series
ABSOLUTE MAXIMUM RATING
Filament voltage (Note 1)
Cathode preheating time
Peak anode voltage
Average anode current
Peak anode current
Anode input power
Load VSWR (Note 2)
Anode temperature (Note 3)
Antenna seal temperature (Note 4)
Capacitor temperature (Note 5)
Storage temperature
Minimum
2.85
0
-30
Maximum
3.75
4.5
350
1.2
1.4
4
300
320
120
60
V
s
kV
mAdc
A
kW
℃
℃
℃
℃
The maximum ratings in this table which are interrelated should not be exceeded
either individually or in combination under any worst case.
Even if the maximum ratings are not exceeded, reduced life can occur as the
operating conditions approach to the maximum ratings.
0MHz
0.40 λ
+10MHz
0.35 λ
+15MHz
900W
-10MHz
0.10 λ
1.5
920W
d
d Loa
+5MHz
r
owa
MHz
V
kV
mAdc
W
ℓ/min
Pa
VS
W
0.05 λ
mT
mu
ini
0.45 λ
20
10-5MHz
500W
5
600W 4
3
700W
800W 2
M
TYPICAL OPERATION
Power supply : Single phase full wave rectified without filter
2465
Frequency
3.3
Filament voltage
4.2
Peak anode voltage (Note 6)
300
Average anode current
Output power (matched load, Note 6)
920
Cooling air flow
800
70
Pressure drop (Approx.)
RIEKE DIAGRAM
Power supply : Single phase full wave rectified without filter
Filament voltage
: 3.3 V
Average anode current
: 300 mA (constant)
Peak anode voltage (Matched load)
: 4.2 kV
Oscillating frequency (matched load) : 2465 MHz
Reference Plane (Antenna)
-15MHz
940W
0.15 λ
Unmeasurable
Region
0.30 λ
0.20 λ
0.25 λ
11
2M303 Series
ABSOLUTE MAXIMUM RATING
Filament voltage (Note 1)
Cathode preheating time
Peak anode voltage
Average anode current
Peak anode current
Anode input power
Load VSWR (Note 2)
Anode temperature (Note 3)
Antenna seal temperature (Note 4)
Capacitor temperature (Note 5)
Storage temperature
Minimum
2.7
0
-30
Maximum
3.6
4.85
380
1.3
1.7
4
300
320
120
60
V
s
kV
mAdc
A
kW
℃
℃
℃
℃
The maximum ratings in this table which are interrelated should not be exceeded
either individually or in combination under any worst case.
Even if the maximum ratings are not exceeded, reduced life can occur as the
operating conditions approach to the maximum ratings.
+5MHz
+10MHz
0.35 λ
+15MHz
1090W
-10MHz
0.10 λ
-15MHz
1120W
0.15 λ
Unmeasurable
Region
0.30 λ
0.20 λ
0.25 λ
12
Load
0.40 λ
5
800W 4
3
900W
2
1000W 1.5
0.05 λ
a rd
Tow
MHz
V
kV
mAdc
W
ℓ/min
Pa
700W
m
mu
0MHz
VS
W
ini
0.45 λ
20
10 -5MHz
M
TYPICAL OPERATION
Power supply : Single phase full wave rectified without filter
Frequency
2465
Filament voltage
3.15
Peak anode voltage (Note 6)
4.4
Average anode current
330
Output power (matched load, Note 6)
1080
Cooling air flow
800
70
Pressure drop (Approx.)
RIEKE DIAGRAM
Power supply : Single phase full wave rectified without filter
Filament voltage
: 3.15 V
Average anode current
: 330 mA (constant)
Peak anode voltage (Matched load)
: 4.4 kV
Oscillating frequency (matched load) : 2465 MHz
Reference Plane (Antenna)
Note
Note1 : The filament transformer design center must be the following
voltage for normal line voltage.
2M231, 2M300
: 3.5 ± 0.1 V
2M229, 2M240, 2M253, 2M301, 2M302
: 3.3 ± 0.1 V
2M248, 2M303
: 3.15 ± 0.1 V
Note 3
Anode temperature
measuring point
Note2 : The load VSWR larger than 4 may be allowable unless
it is locked in such a condition.
It is required to consult with Toshiba Hokuto for the
best design of peak anode current and impedance even if
the VSWR is either less or larger than 4.
Note3 : See outline drawing for measuring point.
Maximum anode temperature for normal condition
(with load in the cavity) should be 250oC.
Note4 : Temperature of metal to ceramic seal.
Maximum allowable built-up curves of seal temperature
is shown in the application note 3-3-1.
Note5 : See outline drawing for measuring point.
Note6 : This is measured within 15 seconds after applying anode voltage.
The standard ambient temperature of the magnetron during
this measurement is 25oC.
Peak anode voltage goes down with operating time from
this value to a lower value due to the rather large temperature
coefficient of ferrite magnet.
Note 5
Filter capacitor temperature
measuring point
13
14